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 Robotics / RCX / *3455 (-100)
  Re: SubSumption and Dave Baum
 
Sorry about that, Jonathan. I didn't think that there was any legOS code in Dave's book, but I didn't want to argue with someone who had read it more recently or more thoroughly than I had (which, honestly, wasn't very much, since I don't do NQC.) (...) (24 years ago, 24-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Does anyone send me a picture of Remote Control?
 
Just yank it out from the Lego mindstorms site. Right click on the picture and save it... Ram (...) (24 years ago, 24-Oct-00, to lugnet.robotics.rcx)
 
  IR ranging
 
hey i read that you can perform ir ranging with an rcx. how can i pull this off? please help. and has anyone tried building a laser diode that is mindstorms compatible? i tried it but i killed my laser. i figure you can do some cool stuff with the (...) (24 years ago, 24-Oct-00, to lugnet.robotics.rcx)
 
  Re: Connecting 2 RCXs
 
Thanks a lot Dean - works perfectly. A good trick - and so evident that I am a bit frustrated not to find it out by myself ... ;-) But this is what friends are for (was it Whitney Houston who sang that?) Bernd (24 years ago, 24-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: Timing of RCX statements
 
(...) Thanky Dave for your reflections concerning the timing. The thing that caused some astonishment and a little bit of frustration is that the RCX is so slow. O.K. - the code sent to the RCX is interpreted and this needs some time. However, I was (...) (24 years ago, 24-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Does anyone send me a picture of Remote Control?
 
I want to have a clear picture of Remote Control, I hope people can send it to me if you have. Br Zhengrong (24 years ago, 24-Oct-00, to lugnet.robotics.rcx)
 
  Re: Monitor() and Event()
 
(...) I decided to write a small sample program showing how to configure events. Check out events.nqc at (URL) reply to: dbaum at enteract dot com (24 years ago, 24-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: Monitor() and Event()
 
(...) Monitoring is automatic (done by the firmware). Monitoring stops when control leaves the monitor statement, so something like this: while(true) { monitor(EVENTS) { } catch { } } will miss a lot of events. You need to configure the events using (...) (24 years ago, 24-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: Timing of RCX statements
 
(...) I wouldn't expect Wait() to be very precise. I haven't looked at the firmware in great detail, but generally when writing this sort of thing you set up timing chains. Imagine a function that gets called every 1ms for bookkeeping... void (...) (24 years ago, 24-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: SubSumption and Dave Baum
 
For the record: _The Unofficial Guide to Lego Mindstorms Robots_ was written by me, Jonathan Knudsen. I'm pretty sure this is the book you're using, since it has the Hank robot in it. As you've observed, the legOS code is for version 0.1.7, and the (...) (24 years ago, 24-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: SubSumption and Dave Baum
 
(...) I'd assume that the first targets will be US bookstores, probably Amazon first ;) But I don't really know. Mainly, I know because they promised to ship us (the authors) our copies as soon as they are off the presses ;) (...) I have never heard (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: SubSumption and Dave Baum
 
(...) Thanks for the info :) Eaagerly awaiting..any idea if they are being distributed worldwide or just usa side ? (...) I Found problem!!! If I call LCD_refresh , having not changed the screen, it goes mad!!! Thats as far as I've debugged it...now (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: SubSumption and Dave Baum
 
(...) About Extreme Mindstorms (please skip if you don't want to see my shameless plugs): I have it on good word that it'll be out from the printer's next Monday. For those of you who haven't seen, I'll shamelessly plug it again: (URL) you are (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  SubSumption and Dave Baum
 
I recently purchased Dave Baums ' Unofficial Guide to Lego Mindstorms' (a good book:), stlil waiting on the extreme one to come out here in the uk though... :) I'm trying to get 'Hank the robot' to work...the little guy just won't, I guess that (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LEGO remote and LNP (legOS 0.2.4)
 
I'd actually really like to include Chris's patch in the official tree, but I'm informed by folks with more clue about the networking stuff than me that switching the parity bit would probably break some LNP stuff. Would everyone be happier if I (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LEGO remote and LNP (legOS 0.2.4)
 
(...) The remote control sends with parity odd, but the rcx is programmed to no parity. If the parity bit has the same value as a undriven line (I think it is logical 1), the byte is received, but otherwise the byte gets thrown away by the serial (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  Timing of RCX statements
 
I was trying to simulate a serial link by using an output of the RCX. I didn't work and when I analyzed the timing, I found out that the RCX's execution of statements is far too slow for the protocol I wanted to simulate. So I made some measurements (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.nqc)
 
  LEGO remote and LNP (legOS 0.2.4)
 
Hi I've just got the LEGO remote control (from the Ultimate Accessory Kit), and of cause it dosen't work with legos. So I tried to see, if anyone had done some kind of driver to it, but I couldn't find any, and began hacking in the legOS kernel (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  Monitor() and Event()
 
Can someone teach me more on Monitor() and Event()? Does the Monitor() check the event status repeatly or we have to make a repeat task to activate the monitoring job? If it is not checking the event status repeatly, why we cannot just read the (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: Cross compiler for cygwin (Win9x/ME)
 
(...) Yes, it has been done. There are no binaries on the web, though, nor up-to-date instructions. :( Paolo Masetti (paolom@pragmanet.it) has started writing up instructions, but I don't know how far along he is in them; he is very, very busy with (...) (24 years ago, 23-Oct-00, to lugnet.robotics.rcx.legos)
 
  ROBOLAB Constructopedia question
 
Can someone with the ROBOLAB Constructopedia tell me if the Acrobot is in there? The Acrobot is in the Mindstorms Constructopedia 1.0 and again in the Mindstorms Constructopedia 1.5 slightly modified. It uses all 4 of the biggest wheels and can flip (...) (24 years ago, 22-Oct-00, to lugnet.robotics.rcx.robolab)
 
  Cross compiler for cygwin (Win9x/ME)
 
Hi, Is the h8300-hms cross compiler needed by LegOS available as a working program under the cygwin 1.1.4 environment (I'm running Windows ME). Or am I better off downloading all the djgpp stuff a'la Roxxz's page? ((URL)) I already have cygwin (...) (24 years ago, 22-Oct-00, to lugnet.robotics.rcx.legos)
 
  NQC 2.2 r2 released
 
A few minor bug fixes from r1 (URL) reply to: dbaum at enteract dot com (24 years ago, 22-Oct-00, to lugnet.robotics.rcx.nqc)  
 
  Keeping track of coordinates with Lejos
 
Here's my experiences with keeping track of X, Y coordinates using Lejos. Hopefully this will help some people, and other people might be able to help me improve these techniques or give me advanced navigation ideas. First, if you haven't got Lejos, (...) (24 years ago, 22-Oct-00, to lugnet.robotics.rcx.java)
 
  Re: Does anyone have the updated 0.2.4 source?
 
Luis, Kernel seems to Make just fine as do .dll modules. All my programs are running pretty much like before, except as noted below: Scaled sensor inputs like LIGHT_2 seem to be more stable and reasonably ranged than in previous versions. Wonder (...) (24 years ago, 21-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LNP Packet Handlers on RCX
 
Hi, I think some things need clearification: 1. lnp_address_handler() is called from interrupt. It may not sleep. There is sample code how to do the packet handling, sleeping and malloc()'ing in legOS/kernel/program.c 2. Interrupts or functions (...) (24 years ago, 20-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LNP Packet Handlers on RCX
 
(...) started dabbling (...) interrupts (...) from the (...) Yes. lnp_integrity_handler() and lnp_address_handler()s are still called from IR byte receiving interrupt. No problem in the actual implementation (taking care of it) but it should be a (...) (24 years ago, 20-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LegOS: Crosscompiler problem
 
(...) ^^^...^^^ (...) The problem is with your makedepend; it doesn't accept the option '-Y' and therefore doesn't generate the .depend file. Please post the output of: which makedepend and rpm -qf `which makedepend` Regards, Hakan (24 years ago, 20-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: compiler problem - help needed please
 
And it is now checked in to CVS. Thanks again! Luis (...) ---...--- "It's clear to us that Microsoft isn't the competition anymore. They are our environment." WordPerfect manager, talking about Word ---...--- (24 years ago, 20-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: compiler problem - help needed please
 
(...) < snip - snip > John - Thank you so much for your help. I just tested your code, and it WORKS PERFECT! You've saved me a lot of trouble. Thanks again. And now on to coding my rcx... :-) Niels Sandholt Busch (24 years ago, 20-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: compiler problem - help needed please
 
Ok, well, it is checked in on my tree but sourceforge CVS doesn't seem to be up at the moment. I'll check it in as soon as sourceforge is happy again. Thanks yet again to those who helped pinpoint this problem. Luis (...) ---...--- "It's clear to us (...) (24 years ago, 20-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: compiler problem - help needed please
 
John- Thanks a bunch for finding that. I'll check that fix into CVS this afternoon. Luis (...) ---...--- "It's clear to us that Microsoft isn't the competition anymore. They are our environment." WordPerfect manager, talking about Word ---...--- (24 years ago, 20-Oct-00, to lugnet.robotics.rcx.legos)
 
  Nice picture of a robotic stegosaure
 
Hello, Here is a nice picture of a robotic stegosaure made by Lego : (URL) more information, please read (URL) - Christophe - (24 years ago, 20-Oct-00, to lugnet.robotics.rcx)
 
  Re: LNP Packet Handlers on RCX
 
(...) Markus can just about definitely handle any questions. Unfortunately, he no longer responds to much of anything. :| Anyway, thanks for the detailed response, Marek... Luis ---...--- "It's clear to us that Microsoft isn't the competition (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LNP Packet Handlers on RCX
 
(...) In legOS v0.2.3 and probably in v0.2.4 they are still called from the interrupt handler (rx_handler). (...) The interrupt handling should be fast, hence any heavy proccessing in lnp_handler is discouraged. Msleep, malloc and similiar functions (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: RCX Code tutorial or better program all together?
 
(...) There sure is.... NQC, a program of the gods. (URL) the news group lugnet.robotics.rcx.nqc is where you discuss NQC. -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 19-Oct-00, to lugnet.robotics, lugnet.robotics.rcx.nqc)
 
  Re: Does anyone have the updated 0.2.4 source?
 
Man, that was fast! I just posted that. Thanks Luis! I'll check it out tonight. Dave (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Does anyone have the updated 0.2.4 source?
 
There is no 0.2.5 as of yet- there may be within a couple of weeks. There really aren't many substantial changes (mainly C++, two very, very small bugfixes.) If you are interested in testing what is in CVS right now I've posted a tarball here: (URL) (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Millenium and ActivePerl
 
(...) No worries, think I was being dumb - i re-installed it without the ISAPI support ,and it seemd to work just fine :) thanks - Ciaran (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Does anyone have the updated 0.2.4 source?
 
Hi all, I've been having lots of fun with LegOS 0.2.4 (after a month of frustration trying to get it to run), and things have been going smoothly. It is much more stable than 0.2.3 however, I understand some patches have been made to the 0.2.4 code (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Connecting 2 RCXs
 
(...) Hook up the output of RCX.A to the Input of RCX.B. Set the RCX.B's input to Touch. Now toggle the RCX.A's output from OFF and float. This will turn the ground 'short' on and off and work Exactly like a switch. No power runs though the Input (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: asking
 
Cromok- In the future, direct emails to lugnet.robotics.rcx....ugnet.com. Thanks :) (...) legOS.srec is the file that contains the legOS kernel, which is the "core" of the legOS operating system. (...) When using this, (at least in the HOWTO) it (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: compiler problem - help needed please
 
(...) No :) Just making sure that you hadn't. (...) Well, I'd hope it is not the distribution. However, it is possible- RedHat 7.0 uses a "new" compiler version (egcs 2.96) that has been known to cause some problems with certain programs. makelx is (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LegOS: Crosscompiler problem
 
Sorry to not respond earlier, Niels. It looks like the .rpms I linked to are slightly broken :| If you do not have permission to write to /usr/lib/legOS/ (which is probably the case, given what I know about the default permissions in /usr/lib/ in (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: compiler problem - help needed please
 
(...) No, should I? (...) I've installed from the tarball, just as described in the HOWTO. (...) Ok, thanks for your reply. I just have to try some more. Maybe try another linux distribution. Niels (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: text location for apps and q?
 
(...) I don't recall for certain, but I think that those are hardware specific. You could always try changing them to see what happens :) (Anyone who is more up-to-date on the compiler magic, feel free to correct me.) (...) Unfortunately, there are (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LNP Packet Handlers on RCX
 
Michael- I seem to recall something about LNP not being completely thread safe. However, there is no documentation on that at all. Stig Neilsson (if he is around) may be a good person to ask, since he has studied the threading model in detail, and (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: text location for apps and q?
 
Ooops. Did not finish my last email before sending it. (...) It sounds like it was built improperly (i.e., without --exec-prefix). Where did you get it from exactly? Luis ---...--- "It's clear to us that Microsoft isn't the competition anymore. They (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: compiler problem - help needed please
 
Niels- Sorry about the delayed response. Have you modified your Makefile.user at all? It does appear like it is getting called correctly, but I want to be sure. Also, how did you install legOS? From tarball or via the RH 6.x rpms? If you installed (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Millenium and ActivePerl
 
Haven't heard of anything. Sorry about that. Then again, I run Linux for a reason- it isn't possible for a program to do that to me. On the plus side, unless you recompile your kernel, you shouldn't need Perl for a legOS install anymore. Luis (...) (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  NQC and RCXCC
 
Using NQC together with RCXCC (by Mark Overmars) is a fine combination that fulfills my demands for writing software, debugging and testing. Unfortunately, Mark Overmars, the author of RCXCC will not do any further development for this product. (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Connecting 2 RCXs
 
The IR interface is one way to establish a "connection" via messages between 2 RCXs and it works fine if both of the RCXs will receive a message - directly or by multiple reflections within the room. However, it is a slow communication. My problem (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.nqc)
 
  (canceled)
 
 
  Millenium and ActivePerl
 
Its been a while since I've posted in here, but I finally started my dissertation on Genetic Programming with Lego Mindstorms, and I'm already (day 1) having problems. I was ruuuunning Legos on a Win2K machine with no problems, however when I (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  LNP Packet Handlers on RCX
 
I remember reading somewhere a while back, when I first started dabbling with LNP, that LNP handlers on the RCX side were called from interrupts and therefore doing things like memory allocation, msleep, heavy processing, etc. were not good ideas. (...) (24 years ago, 19-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Vision Command
 
No. There isn't any. You cannot control the camera form NQC or the RCX for that matter. You can respond to the messages that the Camera sends to the brick via Message(). I hope this syntax is right.... until(Message)>0); switch(Message()) case 1: // (...) (24 years ago, 18-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Vision Command
 
Is there syntax that I am missing to address the "Vision Command" camera? Thanx! Ed (24 years ago, 18-Oct-00, to lugnet.robotics.rcx.nqc)
 
  compiler problem - help needed please
 
Hello everybody I have installed the crosscompiler and legos 2.4 as descriped in the HOWTO. My system is redhat 7.0. The kernel seems to compile just fine, but whenever I try to compile one of the demo programs I get an error. Here is an output from (...) (24 years ago, 18-Oct-00, to lugnet.robotics.rcx.legos)
 
  text location for apps and q?
 
hi all, in Makefile.user there are BASE1 and BASE2 which point to 0xb000 and 0xb210. are those address changeable or are they defined by h8/300 platform? also what is makelx? what does it do with .ds1 and .ds2 which both are the same object file? (...) (24 years ago, 18-Oct-00, to lugnet.robotics.rcx.legos)
 
  RCX communication
 
Hi, (Sorry, my English is not good) I would like to know if it's possible to use legOS (LNP) to get communications between RCXs without the PC, I mean, without an intermediate between the RCXs. And, if it's possible, how can I do that ? I'm using 3 (...) (24 years ago, 17-Oct-00, to lugnet.robotics.rcx.legos)
 
  robotics competition
 
prizes: - three LEGO Droid Developer Kits - three LEGO Vision Comand - three Ultimate Accessory Sets Check it out under (URL) are: - Fred Martin MIT media lab - Scott Savage Marshal Space Flight Center, NASA - Dennis Clark Colorado State University (...) (24 years ago, 16-Oct-00, to lugnet.robotics.rcx.legos)
 
  LEGO robot competition
 
Hi LEGO robotics fans, I am organizing the “First Internet Robot Contest”, a robotics paper contest. Submit your bot in the “LEGO robot category” and win one of the following LEGO prizes: - three LEGO Droid Developer Kits - three LEGO Vision Comand (...) (24 years ago, 16-Oct-00, to lugnet.robotics.rcx)
 
  RE: Motion/Tilt Sensor from Analog Devices and the RCX
 
Not exactly.... The output is an analog voltage, meaning it's not exactly a digital TTL 0 volts or 5 volts, but ranges from 200mv (call this low) to Vcc-200mv (call this high). But this is a PWM output, meaning that with the chip stationary with (...) (24 years ago, 16-Oct-00, to lugnet.robotics.rcx, lugnet.robotics)
 
  Re: Motion/Tilt Sensor from Analog Devices and the RCX
 
Sorry for my ignorance, but doesnt the datasheets mention that it contains both analog and digital outputs and either may be used. Ram (...) (24 years ago, 16-Oct-00, to lugnet.robotics.rcx, lugnet.robotics)
 
  RE: Motion/Tilt Sensor from Analog Devices and the RCX
 
From looking at the data sheets, it's going to be a bit more of a project than just "hooking it up". At a minimum you'll need to have a small micro to decode the dual PWM outputs, and they (AD) have a data sheet describing the use of a Parallax (...) (24 years ago, 16-Oct-00, to lugnet.robotics.rcx, lugnet.robotics)
 
  Re: Memory Usage
 
(...) Ok, thanks. I'll try everything else first, then try this if I get desperate. The main thing I hit a wall with was when I switched to floating-point, which increased my .lx filesize by about 2k, so if I go back to fixed-point, turn sound off (...) (24 years ago, 15-Oct-00, to lugnet.robotics.rcx.legos)
 
  Motion/Tilt Sensor from Analog Devices and the RCX
 
Hi, I just order two free samples of Analog Devices ADXL202E at (URL) Anyone know if this can be hooked up to the RCX? Ram PS: Try to get a free subscription to "Sensors". It is a really cool magazine... (24 years ago, 15-Oct-00, to lugnet.robotics.rcx, lugnet.robotics)
 
  Re: Memory Usage
 
(...) changing (...) place for (...) program for (...) optimized for (...) working for (...) I've further investigated and you can gain some more bytes compiling kernel (and your programs) with -Os option instead of -O2 (Makefile.common, COPT (...) (24 years ago, 15-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Memory Usage
 
(...) Well, I was thinking along the lines of having gcc optimize my program for space instead of speed. Of course, I'd be better off if *I* optimized for space instead of speed, but it can't hurt to have the compiler working for me, if it's (...) (24 years ago, 15-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Memory Usage
 
(...) itself in (...) allocate (...) annoying, (...) You can test memory left using the routine from Eddie: (URL) Anyway, my question is, how can I reduce memory usage? I think cutting (...) HOWTO, (...) that (...) a (...) in (...) process is (...) (...) (24 years ago, 15-Oct-00, to lugnet.robotics.rcx.legos)
 
  Memory Usage
 
Well, I've gone and run out of memory with my RCX. It manifested itself in a task that refused to run, presumably because the OS couldn't allocate enough memory for its stack. Took a while to track down and was annoying, but it was my own fault for (...) (24 years ago, 14-Oct-00, to lugnet.robotics.rcx.legos)
 
  winlnp
 
well, one page is still up... (URL) sure if anyone wants to pursue that or not (Yannis, if you are around, and need space to mirror your files, legOS.sourceforge.net is there for you ;) Luis ---...--- "It's clear to us that Microsoft isn't the (...) (24 years ago, 13-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LNP Questions
 
(...) No idea. Not even sure how much interest there was in it in the first place. I knew I should have mirrored those files :| On the plus side, I know that at least some work was done in porting the "real" LNP tools to the Cygwin installation. (...) (24 years ago, 13-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LNP Questions
 
(...) Well, one "people" is enough for me. (Especially this particular "people"!) So, I will work on this thing and let you know when I have something to show you. Btw, I checked on the Windows version of LNP (I run Linux, but I figure Windows ought (...) (24 years ago, 13-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: LNP Questions
 
(...) I have no idea if "people" would, but if you want to write something up for the HOWTO, I'll bend over backwards to get it into the posted version ASAP. It is really the one major thing that the HOWTO lacks, and that people consistently request (...) (24 years ago, 13-Oct-00, to lugnet.robotics.rcx.legos)
 
  LNP Questions
 
I've been doing a lot with LNP lately, and I have a few questions. First, the lnpd package I have says in the readme that there is a bug in the legOS kernel with sending LNP packets from multiple tasks. Accordingly, all of my LNP-sending functions (...) (24 years ago, 13-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Collective robotics with LEGO Mindstorms
 
(...) I once saw an incredible site about a challenge set by Lego for people to make robots that destroyed each other, but only using lego elements. Some of them used 30+ motors and they basicly ripped each other to pieces. There was also a section (...) (24 years ago, 12-Oct-00, to lugnet.robotics.rcx)
 
  Collective robotics with LEGO Mindstorms
 
Hi all, Anybody has tried the topic in subject? Any interesting references? We've got just one so far: (URL) Pavel Petrovic, petrovic@idi.ntnu.no PhD student, Department of Computer and Information Science, Norwegian University of Science and (...) (24 years ago, 12-Oct-00, to lugnet.robotics.rcx)
 
  RE: Is Extreme Creatures Good? FOS stuff
 
Time to jump in.... The FOS uses a small surface mount LED. It's about 2.5mm x 3 mm and mounted to a thin PCB. There are what look like diodes and what I would guess are current limiting resistors on the board also, so good luck trying to have (...) (24 years ago, 11-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  RE: USB / x86 open sys based RCX replacement??
 
I think what you're looking for is the MIT handy board. Take a look at (URL) is a 68HC11 Micro controller with expansion boards, servo outputs, digital outputs, lot's of neat stuff. An assembled and tested handy board is about $299. There is a (...) (24 years ago, 11-Oct-00, to lugnet.robotics.rcx)
 
  "True" Interrupts
 
When I did some work with the new control structures, I found out that they are quite nice (monitor and acquire). However, you could do the same in the past but you needed to split your program into several tasks which are controlled of a task (...) (24 years ago, 11-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: The Datalog
 
(...) That's why my post ended on a positive note. It's not that I'm ungrateful. Without Lego I wouldn't have hundreds of thousands of bricks all over my house... heh heh. I also wouldn't have 3 RCX's, a Scout & a Micro Scout. Lego just moves very (...) (24 years ago, 11-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: The Datalog
 
(...) In that case: Dear Lego: Please allow random memory access via the next firmware, either through access to the datalog or some other mechanism. Thanks! (24 years ago, 10-Oct-00, to lugnet.robotics.rcx.nqc, lugnet.dear-lego)
 
  Re: The Datalog
 
(...) I wouldn't be quite so pessimistic. Although TLG doesn't really participate in these conversations, I'm certain they are reading them. Also, several of the more annoying limitations of the original firmware were removed (or at least eased) (...) (24 years ago, 10-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: NQC
 
(...) Open source software at it's best! Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 10-Oct-00, to lugnet.robotics, lugnet.robotics.rcx.nqc)
 
  Re: Is Extreme Creatures Good? FOS stuff
 
(...) Yes. Of course. Those are the best ones. LED's are basically just Diodes that make light. So you can "Twist" two LED's together to get one on each polarity. Like I was saying above, my favorites are the tri-coloured LEDs... Dean -- Coin-Op's (...) (24 years ago, 10-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  Re: The Datalog
 
(...) Lego has made it quite clear that they will not listen to us. They say that it pollutes their vision or something. All we can do is hope that the few people they do ask for feedback will point out these 'lacking' points. But, since version 2.0 (...) (24 years ago, 10-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: The Datalog
 
(...) I think you answered your own question. :) (24 years ago, 10-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: Use PC's IR port instead of IR tower?
 
In theory it's possible, provided that: [1] The optical frequency matches adequately (anyone know?) [2] 38400 Hz is close enough to the RCX/Scout modulation frequency to get past any bandpass filtering.. [3] The PC software can accurately turn IR (...) (24 years ago, 10-Oct-00, to lugnet.robotics.rcx)
 
  Palmbot
 
Hi, this is not exactly RCX-related, but I thought that some of you might be interested. It's a robot conrolled by a Palm. You can find it here: (URL) Bye: Andi S. PS: Please mail me if this posting didn't belong here (24 years ago, 10-Oct-00, to lugnet.robotics.rcx)
 
  At last legOS on NT!!
 
At last! I decided to test the cygwin installation on NT and it worked! I still have to use the -s option with firmdl3 but the rest is perfect. Now I have the djgpp distribution on Windows9x and the cygwin distribution on NT. (24 years ago, 10-Oct-00, to lugnet.robotics.rcx.legos)
 
  Re: Is Extreme Creatures Good? FOS stuff
 
(...) Yes. Radio Schlock has a few: orange, definitely (but I think it's one of the 10mm "jumbos", so it wouldn't fit). And I'm pretty sure they have green in smaller sizes. BG Micro (www.bgmicro.com) has some real stunners, that have just hit the (...) (24 years ago, 10-Oct-00, to lugnet.robotics.rcx, lugnet.robotics, lugnet.technic, lugnet.market.shopping)
 
  Re: The Datalog
 
Sorry, Dean - now I got your point. There is indeed no way to read the contents of the datalog. What about storing the data (e.g. for path information, maps, etc.) into an ARRAY instead of the datalog? With RIS2.0 and the latest NQC version you have (...) (24 years ago, 10-Oct-00, to lugnet.robotics.rcx.nqc)
 
  Re: Is Extreme Creatures Good? FOS stuff
 
(...) Ahh, to bad. I wonder if there are any other colors in "ultra bright"? (...) you'd (...) Actually I think there are LED's with only two legs with the "two-color" feature. I'll have to investigate this and come back to you. /Joakim (24 years ago, 10-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  Re: Is Extreme Creatures Good? FOS stuff
 
(...) If you don't use a tiny ultra bright one you won't get much... Also, the circuit it the thing is already making sure the power flows to the LED one way. So you'd have to disable that as well if you want the multicolour LED's. My favs are the (...) (24 years ago, 9-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  Re: Is Extreme Creatures Good? FOS stuff
 
Dean Husby wrote in message <39E24918.6440C972@a....bc.ca>... (...) Arghhh, now i just HAVE to disassemble a few of them and replace it with a green, and a yellow, and a blue... Or maybe a LED that swiches from red to green when swiching polarity. (...) (24 years ago, 9-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  Re: Is Extreme Creatures Good? FOS stuff
 
(...) The Light source is a LED. A super Bright one to be exact. Mounted on an arm that spins around the block. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 9-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  Re: Is Extreme Creatures Good? FOS stuff
 
Has anyone cracked opened one of the FOS units? What is the light source? I assume that there is only one light source that is somehow distributed by the rotary action. If the source is an LED, has anyone attempted to change the color? kirk "Sean (...) (24 years ago, 9-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  Re: Is Extreme Creatures Good?
 
(...) It was also seen in the UFO 6979 ( (URL) ) Also came with a Micro Motor... Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 9-Oct-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
 
  Re: The Datalog
 
(...) Please don't get any of us wrong, the DataLog is a WONDERFUL feature. It makes for the greatest use of the brick as a data gatherer... The ONLY gripe any of us have is that the RCX it's self cannot read back the DataLog... If we could we could (...) (24 years ago, 9-Oct-00, to lugnet.robotics.rcx.nqc)


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